Machine for making paper-box blanks.



Patented Aug. 22,1899.-

.1, BINDER. MACHINE FOR MAKING PAPER BOX BLANKS.

(Application filed Mar. 28, 1899.)

5 Sheets8h'aahl.

(No Model.)

[nae/Z507: J We? WWI/6%,

WZZiZfSSS. a 2% lite 'r'rue Tm: mmms PEYERS so. morouwa, wunlno'ron. n.c.

Patented Aug. 22, I899.

No. 63l,392.

J. BINDER.

MACHINE FOR MAKING PAPER BOX BLANKS.

(Application filed. Mar. 28, 1899.)

5 Shuts-Sheet 2.

(No Model.)

ms. NORRIS PEYERS c0. mom-urge msums'rom u c Patented Aug. 22, I899.

J. BINDER.

MACHINE FOR MAKING PAPER BOX BLANKS.

(Application filed Mar. 28, 1899.)

5 Sheets-Sheet 3,

(No Model.)

1s PETERS coy. vnomumoq WASNINGTON. o. c

u: Mann Patented Aug. 22, 1899.,

.1. BINDER.

MACHINE FOR. MAKING PAPER BOX BLANKS.

(Application filed Mar. 28, 1899.)

5 SheetsShe.at 4.,

(No Model.)

5 7 Fly 1 fiiglZ.

fiweiziolr jm M .zm m v49,

W 7 w & w W z a F 7 w W 7 w% w m m li iarneg' Patented Aug. 22, I899. J.BINDER. 4 MACHINE FUR MAKING PAPER BOX BLANKS.

(Application filed Mar. 28, 1899.)

5 SheetsSheet 5 (No Model.)

was no. wow-urns" "fiAsl-nnomm u. c.

m: NORRIS we UNITED STATES PATENT JOIIANN BINDER, or VIENNA,AUSTRIA-HUNGARY.

MACHINE FoR MAKING PAPER-BOX BLANK'S.

SPECIFICATION forming part of Letters Patent No. 631,392, dated August22, 1899.

Application filed March 28, 1899. Serial No. 710,771; (No model.)

To all whom it may concern:

Be it known that], J OHANN BINDER, a subject of'the Emperor ofAustria-Hi1 ngary, residing at Vienna, in the Province of Lower Austriaand Empire of AustriaHungary,have invented'a new and useful Improvementin Machines for Making Pasteboard-BoxBlanks, of which the following is aspecification.

My invention relates to mechanical means for stamping two pairs ofparallel grooves in cross directions in square pasteboard sheets and-forpunching out the slots running from the four intersections of thegrooves to the edges of the sheet, so as to admit of the four sides ofthe box being fitted.

The invention has mainly for its object to provide grooving-dies, whichpermit two parallel' grooves to be simultaneously stamped in thepasteboard without exerting a strain upon that portion of the materialbetween the two grooves.

Furthermore, the invention has for its object to so construct a machinefitted with the improved grooving dies that pasteboard sheetssuccessively fed into one end of the machine leave the other end in theshape of grooved and slotted box-blanks. I

According to my invention the grooving dies, which, as usual, consist ofa bottom die having a longitudinal rib and an upper die having twomovable cheeks,are so constructed that in a pair of grooving-toolsrequired for simultaneously stamping two parallel grooves in thepasteboard the inner cheeks of both upper dies first force downward thepasteboard resting upon the ribs of the two under dies, the outer cheeksof the upper dies not operating untillater. Owing to this constructionand consequent operation of the grooving-tools, the inner cheeks of theupper dies are enabled to draw the material required for forming thegrooves from the outer sides of the ribs of the bottom dies across thesaid ribs. In order to eifect this operation, the inner checks are sosuspended from their carriers or die-bodies that they can movevertically in their seats to a certain extent, springs being providedfor keeping them in their lowcrmost position when they are not pressedonto the pasteboard' introduced between the upper and bottom dies. Theouter checks are hinged to the carriers and have their ends providedwith downwardly-extending projections, to which inclined surfaces formedin recesses or the like in the bottom die, near both ends of the saiddie,correspond. A spring keeps the cheeks of the upper die apart whenthe said die is not operating. Before the upper dies are lowered theirinner cheeks extend farther downward than the on tercheeks,

same time enter their seats in the carriers and are thereby equallypressed against the ribs of the bottom dies.

In the machine a frame-shaped carriage is intermittently reciprocatedupon a worktable over which three frames, carrying transverse upperdies, longitudinal upper dies, and male punches, respectively, arearranged, these frames being provided with suitable mechanism wherebythey are kept raised while the carriage is moving and lowered andsubsequently raised while the carriage is at rest. The said frame-shapedcarriage is provided with guideways for the lateral edges of the sheetsof pasteboard and with downwardly projecting spring grips adapted tofeed a sheet of pasteboard placed upon the rear end of the work-tableupon which spring-stops for the said sheet are arranged. In itsoperation the said carriage first moves beyond the place Where the sheetof pasteboard is to be operated upon and afterward a given distancebackward, when the said sheet is stopped by the spring-stops in therequisite position.

, In machines for working thin pasteboard, which is liable to crowdingin the guideways forits lateral edges'while the carriage moves backwardin order to feed in a new sheet, I provide tongs adapted to seize thefront edges of the sheets and to hold them fast while the carriage ismoving backward.

Upon the work-table there are arranged at riers.

dies, longitudinal bottom dies, and female punches.

As when tnaking narrow boxes it is necessary to cut off a port-ion ofthe flaps outside the punched slots, provision is made for securingsuitable knives to the frame carrying the male punches, and in order toallow these knives to pass by the female punches these latter arecomposed of two relatively adjustable parts.

In order to make my invention fully understood, I shall hereinafterdescribe the same in detail, with reference to the accompanying sixsheets of drawings, in which Figure l is a side elevation of my improvedmachine, the rear ends of the bars upon which the pasteboard sheets tobe operated upon are placed being shown separately and the framescarrying the upper dies and male punches being shown in section. Figs. 2and 3 are the left-hand half and righthand half, respectively, of asectional side elevation of the work-table of the machine, drawn on alarger scale. Figs. 4 and 5 are the left-hand half and right-hand half,respectively, of a top view of the machine, one-half part of the framescarrying the upper dies and male punches being broken away for showingthe underlying parts. Fig. 6 is a sectional end elevation of the machineon line (3 6, Fig. 5. Figs. 7, 8, and 9 are sectional side elevations,on a larger scale, of the grooving-tool in three successive positions.Figs. 10 and 11 are a side elevation and cross-section, respectively, ofone end of a bottom die. Figs. 12 and 13 are an edge view and top view,respectively, of a pasteboard-box blank made by my machine. Figs. l4,l5, and 16 are sectional side elevations showing three successivepositions of one of the tongs withholding the pasteboard sheets whilethe feeding-carriage is moving backward. Fig. 17 is a top view of thesaid tongs and the mechanism operating it.

Referring to Figs. 1, 2, 3, 4, and 5 of the drawings, the work-tablementioned above is formed of the two lateral frames A A, the cross-barsa a a connecting them, the stayrods a a and the base-plate A.

For operating, in the described way, the carriers of the upperdies andthe male punches, and the feeding-carriage, the following mechanism isprovided.

The driving-shaft B, carrying the belt-pulleys b b, transmits themovement by means of the pinion b to the three toothed wheels 0 d e,meshing with one another, being of equal diameter-and keyed to theshafts C, D, and E, respectively, which operate the tool-car- The saidtool-carriers F, G, and II have the shape of frames extending across thework-table and having their lateral ends adjustably connected withslides ffg g h it, respectively, for which suitable guideways are formedon the outer faces of the frames A A. By means of the cams c d e,secured to the ends of the shafts G D E, respectively, the said slidesare raised and kept in raised position during a certain time, whereafterthey are lowered by the cams 0 d 6 respectively, with which both ends ofthe said shafts are supplied. The weights c (1 and 6 secured to thetoothed wheels 0, d, and 6, respectively, counterbalance thetool-carriers F G H and the slidesfg h.

The reciprocating frame, having for its office to feed the pasteboardsheets while the tool-carriers F G H are raised from the projecting barsJ J to the working place I below the tool-carrier F, or thence to theworking place II below the tool-carrier G, or, again, from the workingplace 11 to the working place III below the tool-carrier H, and finallyout from the machine, consists of two longitudinal bars K K, suitablyguided in chairs K and connected with each other by a number ofcross-bars 7c k is. To the said crossbars 7.: are adjustably secured, bymeans of screws passing through slots W, the longitudinal bars 70, inthe inner sides of which are formed the guide-grooves 70' (see Fig. 6)for the lateral edges of the pasteboard sheets and which carry thespring-grips It. When the feed-carriage K K 7c lo 70 k is in itsrearmost position, (shown in dots in Fig. 4,) the hindmost ones of thespring-grips lc are placed behind the rear edge of the sheet ofpasteboard 11 (likewise shown in dots) and having its front portionintroduced into the guidegrooves 76 The operator, laying the pasteboardsheets upon the bars J J and introducing the front end of each sheetinto the guide-grooves k 70 causes the rear edge of the sheet to abutagainst the adjustable angle-iron stops j j. By the following frontstroke of the feed-carriage the rear edge of the pasteboard sheet iscarried beyond the spring-stops 7a", which are secured to the flatsheet-supporting bars J J, these latter being adjust-ably connected withthe cross-barlc of the machine-frame, adapted to be shifted forward andrearward. A subsequent short backward movement of the feedcarriagecauses the rear edge of the pasteboard sheet to abut against the stopsin, whose position corresponds to that in which the pasteboard sheet isto be operated upon.

When the machine is run rapidly, the pasteboard sheet may, when themovement of the feed-carriage is reversed, slide farther forward underthe action of its vist'it'a. In order to prevent that, the flat bars 70k which are edgewise secured to the three anterior cross-bars 70 k it,have pivoted to them stops 7.2 held in upright position by springs. Tothe said longitudinal bars 70 are also adjustably secured thespring-stops 7c, corresponding to the working places 11 and III.

It has been stated hereinbefore that the feed-carriage first movesrearward in order to seize the pasteboard sheet with the springgrips 70afterward, sufliciently forward to carry the rear edge of the pasteboardsheet beyond the spring-stops k, and finally rearward again such ameasure as to cause the rear edge of the pasteboard sheet to abutagainst the said stops. In order to impart to the feed-carriage themovements referred to, thesame is, by a link '1, connected to a lever L,pivoted to the machine-frame and geared by means of another link orconnecting-rod Z with the arm of an angular lever. The other arm of thisangular lever is formed by the fork branches Z and Z located indifferent planes and carrying at their ends antifriction-rollers Z whichbear against cams and Z respectively. The ca'ms Z and Z are keyed totheshaft O. The cam Z keeps, by means of the portion of itscircumference concentric to the axis, the feed-carriage in advancedposition while the tools are working. This stage of the operation isillustrated in Fig. 1.. The cam Z moves the feedcarriage backward toreceive a new sheet of pasteboard and keeps it a short timein withdrawnposition, whereupon the cam Z begins to Work the advance. As soon as thefront stroke is at an end the short eccentric portion i of thecircumference of the cam Z produces a short rearward movement of thefeedcarriage for the purpose already explained.

The bot-tom'dies m of the grooving-tools, which are provided with alongitudinal rib m triangular in cross-section, are adj ustablyconnected with the work-tablein transverse positions at the workingplace Iand in longitudinal positions at the working place II. As clearlyvisible in Figs. 10 and 11, steel prisms m of dovetail section are atboth ends of the rib m inserted into correspondingly-shaped grooves ofthe bottom dies. The said prisms are provided with trough-shapeddepressions, upon the inclined sides of which projections of the hingedcheeks of the upper dies slide on these dies being lowered, therebypressing the said cheeks onto the rib m of the bottom die. In a similarmanner as the'bottom dies are adj ustably seated upon the work-table theupper dies are seated in corresponding positions in the frame-shapedcarriers F and G. The said upper dies consist ofa bar-shaped casing mand the two cheeks m and m movable therein. The cheeks m facing eachother in a pair-of coacting dies'i. e. placed at the inner sides of thetwo dies are upwardlytapering-wedge shaped, and by screws passingthrough slots of the cheeks they are suspended in suitable recesses ofthe casing m wherein they are vertically movable a certain rate.Projection m of the top edge of each cheek m extends to the outsidethrough slots of the top side of the casing m and bears against strongplate-sprin gs m secured.

to the top face of the casing. The outer cheeks m of the upper dies havetheir top edge formed into a cylindric bulge m inserted into acorrespondingly-shaped groove in the bottom side of the casing m Bothends of the bulge m carry trunnions m for which the'bearings are formedin the brackets m screwed to the casing m lower edge of the cheek m areprovided with Both ends of the downwardlyextending projections m,corresponding to the trouglvshaped depressions in the steel prisms mWhen the dies are not operating, their cheeks m and m are held apart bya spring 171 and by the springs m the sliding-cheek m is forceddownward, so that it reaches farther down than the hinged cheek mW'henboth upper dies, destined to act simultaneously upon the sheet ofpasteboard n, are lowered, the cheeks m touch the pasteboard first, asillustrated by Fig. 7, between the ribs m of the two bottom dies. thelowering of the upper dies proceeds far-- ther, as shown by Fig. 8, theportion of the pasteboard sheet a comprised between the two ribs m ofthe bottom dies is by the cheeks m pressed down between the said ribsbefore the outer cheeks m of the upper dies begin to operate. Therebypossibility is atforded for the inner cheeks to draw the pasteboard fromwithout across the ribs m. Fig. 9 illustrates that during the last stageof the lowering of the upper dies the cheek m overcomes the pressure ofthe plate-springs m which are raised, and the cheek m is, in consequenceof its inclined outer surface sliding over the lower edge of the casingm pressed onto the rib 'm of the lower die m. At the same time theprojecting heels m at both ends of the cheek m slide upon the inclinesof the trough-shaped depressions in the steel prisms m whereby the saidcheck is swung toward the rib m. In this way transverse grooves n arestamped into'the sheet of pasteboard a at the working place I andlongitudinal grooves n at the working place II.

For cutting out the recesses n female punches are at the working placeIII, adjustably securedto the machine-frame, and corresponding malepunches are fixed to the tool-carrier H. In order to afiord possibilityfor combining the said punches with a knife destined to cut off aportion of the flaps n",

While ICC the female punches are composed of two relatively-adjustableparts 0 and 0. As clearly shownin Figs. 5 and 6, both parts areyokeshaped and adjustably secured, by means of screws 0 to slottedlongitudinal bars 0 0 which for their part are adjustably connected withthe cross-bars a and a of the machine-frame. The male punches 0 thelower edges of which are oblique, so that they gradually sever the stripof material to be removed, are secured, as clearly shown in Figs. 1 and6, to longitudinal bridges 0 which are so suspended from thetool-carrier H as to be laterally adjustable and which are provided witha series of holes admitting of the longitudinal adjustment of thepunches 0 The yoke-shaped parts 0 carrying the punches 0 are againfastened to the bridges o by means of screws 0 In order toadmit of thethe yokes 0 carrying the knives 0 are adjustablysccured by means ofbinding-screws 0 When the knives o are to be used, the female punchesmust be adjusted, as shown, for the right-hand one in Fig. 5.

It will be seen in Figs. 2 and a that at the working place I the groovedguide-bars 7c are interrupted at the points 19 and p for admitting ofthe upper dies passing there. In order to have the pasteboard sheet,notwithstanding these gaps, surely brought upon the second bottom die aninclined sheet-metal flap p is riveted to the said die.

The brake block g, which is set with leather and pressed onto thefeed-carriage by the plate-spring q, secured to a guide-chair K, absorbsthe his viva of the carriage, and

the stop screws r 1' (shown in Figs. 3 and 4) limit its stroke.

The free space at the front end of the machine-frame is intended to beutilized for mounting there a printing-press, by means of which requiredinscriptions can be printed upon the box-blanks.

Figs. 14: to 17 illustrate the tongs which I combine with the describedmachine for preventing thin pasteboard from crowdingin the guidewayswhile the feed-carriage is moving backward. The said tongs are adjustably arranged in such positions that they are adapted to seize andhold the front edges of the pasteboard sheets after they have beenoperated upon at the working places I, II, and III of the machine. Eachpair of tongs consists of a fixed lower jaws and a movable upper jaw s.The lower jaws sare made integral with slotted plates 3 which areendwise adjustable upon the edgewise-arranged longitudinal bars k of themachine frame. Each movable jaw s is formed at the free end of one armof a bell-crank lever 8 pivoted to the plate 5 and having its other armconnected by a link 8 to a block 8", which a plate-spring s connects toan intermittentlyreciprocating standard 8 both standards belonging totwo coacting pairs of tongs being adjustably secured to a cross-bar s.The three cross-bars 5 arranged in front of the three working places III III of the machine, have their ends adjustably connected withlongitudinal slide-bars s guided in holes of the cross-bars a, a, and aof the machineframe. Each slide-rod s is connected by a link 8 to alever s, which is pivoted to the side frame A and suitably oscillated bythe cams s and keyed to the shaft D.

Fig. 14 illustrates the stage of operation when the pasteboard sheet ais carried forward by the feed-carriage. Then a concentric portion t'ofthe circumference of the cam s keeps the slide-rods in their rearmostposition, and consequently the movable jaws of all tongs suiiicientlylowered as to be out of the way of the advancing sheets H.

In Fig. 15 the rear edge of the sheet n has been caused by the shortback stroke of the feed-carriage to abut against the spring-stops Themovable jaws s of the tongs assist the feed-carriage in this adjustingof the sheets a into the positions in which they are to be operatedupon, as the eccentric portion 2 of the cam :9 causes the slide-rods sto move forward, whereby the jaws s are brought into the position shownin dots, in which they bear against the front edges of the pasteboardsheets. Soon afterward the short eccentric curve3 of the cams 8 causesthe movable jaws to recede into the position shown in full lines in Fig.15, in which position they do not interfere with the pasteboard sheetsa, which are consequently free to alter their dimensions under theaction of the grooving-tools.

Fig. 16 shows the operation of the tongs during the back stroke of thefeed-carriage. The eccentric portion at of the cam 5' causes the movablejaws s wholly to fold down upon the fixed ones, 3, and thereby to jam inthe front edges of the sheets 71. The concentric portion 5 of the cam 5maintains the jaws s in this position while the carriage is slidingbackward. By the spring connection between the link 8 and standard 3 1provide for pasteboards of different thicknesses, as may be inferredfrom Fig. 16.

\Vhat I claim, and desire to secure by Letters Patent of the UnitedStates, is-

1. In a tool for grooving pasteboard, the combination with a bottom die,having a rib and trough-shaped depressions at both ends of the rib, ofan upper die body or casing, a cheek vertically movable in the saidcasing, a spring bearing against the top of the vertically-movablecheck, a cheek hinged to the casing and having at both ends of its loweredge projections adapted to enter the said trough-shaped depressions ofthe bottom die and a spring so arranged between the two cheeks as tokeep them apart, the verticallymovable cheek extending farther downwardthan the hinged one when the tool is not operating, substantially as andfor the purpose described.

2. In a machine for making pasteboard-box blanks, the combination with awork-table of a frame-shaped carriage adapted to be endwise reciprocatedupon the said work-table, internally-grooved longitudinal bars securedto the under side of the said frame-shaped carriage, cross series ofspring-grips arranged upon the under side of the carriage between thesaid longitudinal grooved bars, and corresponding spring-stops securedto the worktable, substantially as and for the purpose described.

In a machine for making pasteboard-box blanks, the combination with awork-table of a frame-shaped carriage adapted to be endwise reciprocatedupon the said work-table, internally-grooved longitudinal bars securedto the under side of the said carriage, cross series of spring-gripsarranged on the under side of the carriage between the said longitudinalgrooved bars, corresponding springstops secured to the work-table andtongs adapted to open when the carriage moves forward and to close whenthe carriage moves backward, substantially as and for the purposedescribed.

4. In a machine for making pasteboard-box blanks, the combination with awork-table of a frame-shaped carriage adapted to be endwise reciprocatedupon the said work-table, internally-grooved longitudinal bars securedto the under side, of the said frame-shaped carriage, cross series ofspringrips arranged upon the under side of the carriage between the saidlongitudinal grooved bars, corresponding spring-stops secured to theworktable, and suitable mechanism for so operating the carriage that itfirst makes a back stroke of given throw, secondly a forward. stroke oflonger throw, thirdly a back stroke bringing it into its originalposition, and fourthly remains stationary a certain time,

substantially as and for the purpose de- JOHANN BINDER.

Witnesses:

VESTAR KEUPL, ALVESTO S. HOGUE.

